176 Nelson New Plants from Nevada. 



and, like that, with the leaves glabrous above. The two are, however, 

 readily separated even in the field, for A. Suksdorfii always has the pale 

 green, shining, glabrate, slender involucres and the few flowered heads 

 (5-8) while A. Kennedyi is with equal uniformity white-lanateon the broad 

 involucre and the heads are many flowered (12-20). In the former the 

 tomentum is close fine and felted, giving to the under side of the leaf a 

 white-glaucous hue in strong contrast to the dark green of the upper face ; 

 in the latter the tomentum is looser and easily recognized as wool by the 

 unaided eye. One is a seacoast species ; the other of the hills and valleys, 

 and extends into the dry interior. 



I take as type Prof. Kennedy's No. 963, Verdi, Washoe Co., Nevada. I 

 place here also the following: Kennedy and Doten, 420, French Meadows, 

 California, August, 1901 ; Michenerand Bioletti, L. Temescal, August, 1891 ; 

 A. A. Heller, 7193, Pacific Grove, August, 1903; 7209, hills near Los Gatos, 

 September, 1903. 



